One vertex per element, one color per generator, with an edge from x to x·s.
(1,2)(3,11)(4,14)(5,10)(6,7)(8,12)(9,15)(13,16)(17,18,23,26)(19,22,25,31)(20,21,24,30)(27,28,29,32)(35,37)(39,41)(43,45)(47,48)(2,7)(3,12)(9,14)(10,13)(17,19)(18,22)(20,27)(21,28)(23,25)(24,29)(26,31)(30,32)(33,34,38,42)(35,39,37,41)(36,44,46,40)(43,48,45,47)(2,7)(5,16)(8,11)(9,14)(19,25)(22,31)(27,29)(28,32)(33,35,38,37)(34,39,42,41)(36,43,46,45)(40,47,44,48)(1,3,6,12)(2,8,7,11)(4,10,15,13)(5,14,16,9)(17,20)(18,21)(19,27)(22,28)(23,24)(25,29)(26,30)(31,32)(33,36,38,46)(34,40,42,44)(35,43,37,45)(39,47,41,48)(1,4,6,15)(2,9,7,14)(3,13,12,10)(5,8,16,11)(17,21)(18,24)(19,28)(20,26)(22,29)(23,30)(25,32)(27,31)(33,37,38,35)(34,41,42,39)(36,45,46,43)(40,48,44,47)(1,5,6,16)(2,10,7,13)(3,14,12,9)(4,8,15,11)(17,22,23,31)(18,25,26,19)(20,28,24,32)(21,29,30,27)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.